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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Where to start!



Wheels and Tires forum Sponsored by The Tire Rack
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Wheel offset calculator courtesy of BimmerPost.com. You may use this calculator to calculate what tire sizes you might need if you upgrade your tires, or what wheel sizes/offsets are compatible with your car.
    Current Wheel Width  inches             Current Wheel Offset  mm.
         New Wheel Width  inches                  New Wheel Offset  mm.
 
TIRE WIDTH
/
ASPECT RATIO
- WHEEL DIAMETER
ORIGINAL TIRES
/
NEW TIRES
/
Based on your stock wheel setup, your new wheel will have:
Original Tires Diameter (in.)
      New Tires Diameter (in.)
  Difference in diameter (in.)
           Percent Difference %
                     
Speedo @60mph will read: mph
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      03-14-2013, 01:33 PM   #1
SurferDude
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Drives: 2011 323i
Join Date: Feb 2011
Location: Mississauga

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Where to start!

Hey guys!

Currently have a stock 2011 323i that I'm looking at purchasing rims, tires and suspension this year. I want to make sure I make the right decision before I decide to jump into anything.

My question is... Where do I start exactly?

Thanks!!
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      03-14-2013, 02:15 PM   #2
haajehaa
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Drives: 09 E90 LCI M-Sport
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1. Budget first!

2. See what others are running (surfing around e90post) for ideas.

3. Decide what you personally like.

4. Purchase.
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      03-14-2013, 04:39 PM   #3
SurferDude
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Drives: 2011 323i
Join Date: Feb 2011
Location: Mississauga

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Where I get confused is... When referring to E90 models I'm under the impression that the fitment on the 323i differs from 328s and 335s. Is this correct?
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      03-15-2013, 02:05 AM   #4
MonacoBlueE90
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Quote:
Originally Posted by SurferDude View Post
Where I get confused is... When referring to E90 models I'm under the impression that the fitment on the 323i differs from 328s and 335s. Is this correct?
Only difference is brake clearance which doesn't affect much to you, because your brake are smaller than 335. Of course your LCI has 8mm/side wider rear track compared to Pre-LCI. Which means that Et30 on Pre-lci would be same as et22 on your LCI

I would start from lowering the car and then think about the wheels.

1. Style of the wheel: lip, concave or something else
2. Which size 18 or 19 or 20 inch
3. Do you want staggered or square setup
4. How aggressive specs you want (wheel width and offset)?
5. Do you want stretch & poke or flush with fender setup or basic setup?
6. Do you mind small tyre stretch or do want tyres to be wide as possible.
7. Are you willing to do fender roll and possible other modifications.


Some different examples
http://www.e90post.com/forums/showthread.php?t=806962
http://www.e90post.com/forums/showthread.php?t=258714
http://www.e90post.com/forums/showthread.php?t=432634
http://www.e90post.com/forums/showthread.php?t=751657

This might give you some ideas.
http://www.e90post.com/forums/showthread.php?t=67234
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